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  1. #1
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    Default E85 pros and cons

    Anyone want to add their 2c worth.

    Currently run avgas but it's not exactly legal or lung/enviro friendly.
    I think I could run avgas up to 12.5-1 or more though.

    Pro's I've heard;
    More comp, cooler intake, more power.

    Cons;
    New carb/fuel lines/pump?
    Engine will drink 30% more?
    I think I remember something about goo build up in the intake?

  2. #2
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    E85 is an awesome fuel
    yes it will take a bit more comp but i wouldnt pull heads off for a point of comp
    down side need to keep an eye on what you buy slower turn over servos will end up with an algy type growth in in it as well as water
    and you have to follow an maintenance schedule to protect your engine and carby
    well worth the effort
    ONE STOP MOTORSPORT SHOP - engine building and development - tuning and complete fuel systems-- latest dyno dynamics dyno --click the link to see our facebook page https://www.facebook.com/pages/Zok-R...9505334?ref=hl

  3. #3
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    Currently have 11.4.
    What's the maintenance schedule?

  4. #4
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    Quote Originally Posted by RedTaxi View Post
    Currently have 11.4.
    What's the maintenance schedule?
    it would take more but will work with that
    sorry mate not enough time to write it all out now but i will as soon as i have a chance
    ONE STOP MOTORSPORT SHOP - engine building and development - tuning and complete fuel systems-- latest dyno dynamics dyno --click the link to see our facebook page https://www.facebook.com/pages/Zok-R...9505334?ref=hl

  5. #5
    Do you ever leave? DR327VK's Avatar
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    More like uses 30% on lean cruze tune! and it uses like 100% more fuel WOT
    Most fuel lines are still good to re-use.
    Need more initial timing.
    Maintenance is just the same, but storage longer than month recommend fuel stabilizer to prevent moisture. Long term my carby fuel bowl had small amount white corrosion, but that was after 3years sitting!
    Fuel has very low boiling point! so heat soak the lines will cause vaper lock!
    It will eat fuel cell foam, and some anadised fittings too! cheap stuff.
    Injectors in efi system if sitting long time eg 1year can block up too!

  6. #6
    in the shed buildin shit 3554me's Avatar
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    Okay my 2c ,

    I love the stuff the end ! lol

    After nearly 2 years
    10 year black fuel foam < not affected
    Alloy lines and fittings all good still
    11.8 comp seems fine
    In my case it responded well to advanced cam timing (288 cam)
    ignition timing still same as 98 fuel
    Carby needs bigger boosters / n&s / jets / squirters , but less and smaller emulsion bleeds
    Hotter spark plugs
    Test your batch for curiosity I guess and catch a little in a jar for visual assessment if
    you are worried .
    10.44@128.90 on e85 26x10
    10.48@129.67 on e85 255 radial


  7. #7
    254RWHP boat anchor EVL253's Avatar
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    with your comp id run around e70. ive got 11.6 comp & have run a 175 shot of gas on top with 30 deg timing on E70.
    i still have stock tank same 1/2 inch lines reg etc as did on petrol.hollley blue as well.
    i have noticed some white gunk in the idle jets if left sit for months. & black goo in the intake. idle some petrol through is meant to get rid of it. 900psi of nitrous removes my build up.
    basically its an awesome fuel.
    my 308 stroker thats in the workz is going to have close to 13:1 & will cop some gas as well. yanks have run ex pro stock 16:1 engines on this stuff outta the pump
    11 second E85 bottle fed boat anchor

  8. #8
    casual poster VHSLX253's Avatar
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    Just some Im not missing anything you mean as in e85 fuel, is it fine running in a standard fuel lines, holley 600dp carb ?

    Should I be looking at other things to accompany this, noticed later the part throttle a very slight slight hesitation then the car will pick up and go, eg when Im in 2nd gear at 2500rpm and then part throttle accelerate for a slight bog then it will go,any ideas ?

    Cheers,

  9. #9
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    Use VP M2 lubricant if not driven weekly.
    Rubber hoses will corrode from inside and cause needle and seat issues.
    Quickfuel e85 carbs are good.
    Used my Holley blue for 2 years on e85, only took it off due to fuel system upgrade.
    Make sure your ignition system is good, stock Hei with blaster coil didn't like starting in the cold. Crane hi6 fixed that.

  10. #10
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    Lotsa good info here. "100% more fuel WOT" Fek!

  11. #11
    254RWHP boat anchor EVL253's Avatar
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    lol well stock sec jet for my 650 is 73. i forget exactly but its up around 88-90 jets now. in saying that i can & have had it happily cruise along at 1.1 lambda. thats near 17:1 afr in petrol scale.my idle jet is 1 thou bigger than stock petrol & stock pri is a 67 jet it has a 70 jet on e70.pvcr are big. cruises lean but goes .77lambda at wot.
    so u can make it somewhat economical cruising. toe the boot in & watch the guage drop
    11 second E85 bottle fed boat anchor

  12. #12
    in the shed buildin shit 3554me's Avatar
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    98 vs e85

    8 to 9 sizes larger jet
    .020 larger boosters
    .020 larger n&s
    ..010 larger cross channel
    15 litres for 5 runs at Willowbank including return road 10km round trip
    10.44@128.90 on e85 26x10
    10.48@129.67 on e85 255 radial


  13. #13
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    Tried modding my 750 hp petrol carb to run e85 but without ifr, power valve channel drilling could never get it 100%. And then there's the larger fuel bowls needed for racing and bits and pieces that will last with e85 like floats, diaphragms etc that you'll need. So I just got a quickfuel e85 carb. They were $720 back in 2010ish for the q series, $1160 now! I would and will eventually give fitech meanstreet efi a go next, will cost about $2300 all up but will save money on dyno.

  14. #14
    Part of the furniture
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    For a race style performance car there's no cons really, maybe availability. But u just make it happen. I've now had pump ethonal in a drum for 8months, it tested at e89. Was mixed with vp racing additive when stored, now tests at about e87-e88. Still perfect.
    I store the car with 98 in the tank after running for 5 or so minutes on 98 and park up.

  15. #15
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    Cheers tokes for that info you have just helped make up my mind in regards to running e85 in drums as I live 600 odd k's from a e85 bowser! And was worried if it would be an issue with using it out of a drum any chance you share what brand drum you use?

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